h3n3/NSPanel_HA_Blueprint
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Move rgbTo565 to header file

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For IDF 5 compatibility
This commit is contained in:
Edward Firmo
2024-04-09 07:56:06 +02:00
parent 10e0a47b6f
commit 12837077da
2 changed files with 15 additions and 14 deletions
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11
components/nspanel_ha_blueprint/nextion_components.cpp
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@@ -33,15 +33,4 @@ namespace nspanel_ha_blueprint {
return result;
}
template <typename Container>
uint16_t rgbTo565(const Container& rgb) {
if (rgb.size() != 3) {
return UINT16_MAX;
}
return ((rgb[0] & 0xF8) << 8) | ((rgb[1] & 0xFC) << 3) | (rgb[2] >> 3);
}
// Template instantiation for std::vector<int>
template uint16_t rgbTo565<std::vector<int>>(const std::vector<int>& rgb);
} // namespace nspanel_ha_blueprint

18
components/nspanel_ha_blueprint/nextion_components.h
View File

@@ -27,11 +27,23 @@ namespace nspanel_ha_blueprint {
/**
* Converts an RGB color represented as a vector of integers to the 16-bit 5-6-5 format supported by Nextion displays.
*
*
* This function takes a vector containing three integer values representing
* the red, green, and blue components of an RGB color, each in the range 0-255.
* It then converts these values into a single uint16_t value in 5-6-5 format,
* commonly used for color displays. The conversion process masks and shifts
* the components to fit into the 5 bits for red, 6 bits for green, and 5 bits for blue.
*
* @param rgb A vector of integers with exactly three elements: [red, green, blue].
* @return The color encoded in 16-bit 5-6-5 format, or UINT16_MAX if the input vector does not contain exactly three elements.
* @return The color encoded in 16-bit 5-6-5 format, or UINT16_MAX if the input vector
* does not contain at least three elements.
*/
template <typename Container>
uint16_t rgbTo565(const Container& rgb);
inline uint16_t rgbTo565(const Container& rgb) {
if (rgb.size() != 3) {
return UINT16_MAX; // Use UINT16_MAX as an error indicator
}
return ((rgb[0] & 0xF8) << 8) | ((rgb[1] & 0xFC) << 3) | (rgb[2] >> 3);
}
} // namespace nspanel_ha_blueprint